Floor polisher



Dec. 6, 1949 J. c. ENGBERT ET AL 2,490,681

FLOOR POLISHER Fil'ed Aug. 26, 1946 Y I m/entor f "my arzczs 19Enfber- Patented Dec. 6, 1949 FLOOR POLISHER Julius C. Engbert and Francis A. Engbert, St. Louis, Mo.

Application August 26, 1946, Serial No. 693,114

1 Claim.

This invention relates to improvements in floor polishers.

An object of the invention is to provide an improved form of floor polisher including a base member and a head member pivotally supported thereon, between which a polishing cloth or pad Will be clamped after positioning the same under the base member to hold it secure and in xed position while polishing'a oor.

Another object of the invention is to provide an improved floor polisher including a base member having transversely extending cloth or pad locking grooves formed in its upper surface, and a head member pivotally supported thereon having cooperating transversely extending polishing cloth or pad locking ribs adapted to overlie said grooves to support the ends of a polishing cloth or pad therebetween, together with clamping means for locking said base member and said head member in closed and locked position.

A further object of the invention is to provide an improved floor polisher including a base member and a head member pivotally supported thereon, together with oppositely disposed upwardly extending cloth or pad engaging pointed spurs on the upper surface of said base member, and clamping and locking means for holding said members closed when a polishing cloth or pad is positioned therebetween.

Another object of the invention is to provide an improved floor polisher having a base member and a head member pivotally supported thereon having a pivoted handle supporting socket on its upper surface, and cooperating means on said base and head members to positively engage and to hold the ends of a polishing cloth or pad after the same has been placed over the bottom surface of the said base member.

Other objects will appear as the description proceeds.

In the accompanying drawings which form a part of this application.

Figure 1 is a plan view of Ithe improved oor polisher with portions thereof being broken away and in section to show the pivotal and locking means therefor;

Figure 2 is a side elevation of the improved oor polisher with portions thereof being broken away and in section to better show the polishing cloth or pad securing means, and

Figure 3 is a sectional view taken on the line 3-3 of Figure 2.

Like characters of reference are used throughout the following specification and the accom- 2 panying drawings to designate corresponding Darts.

In carrying out the invention, there is provided an improved form of floor polisher including a flat substantially rectangular shaped base member I being rounded on its front and rear ends, and having a pair of upstanding spaced apertured ears 2 and 3 formed on its upper surface at the edges of the front thereof.

Transversely extending polishing cloth or pad supporting grooves 4 and 5 are formed in the upper surface of said base member I adjacent its front and rear ends, and transversely spaced upwardly extending pointed cloth or pad engaging spurs 6 are supported in the upper surface of said base member I interiorly of said grooves 4 and 5, as clearly shown in Figures 1 and 2 of the drawings.

The fiat head member 'I is of substantially rectangular shape being of a size to evenly overlie said base member I, the same being notched at its opposite front corners to receive the upstanding spaced apertured ears 2 and 3 of said base member I, and is also inwardly apertured or bored to receive the pivot pins 8 and 9 supported therein and through the said apertured ears 2 and 3.

Transversely extending spaced depending polishing cloth or pad engaging ribs I0 and II are formed on the lower surface of the head member 'I to cooperate with the spaced grooves 4 and 5 in the upper surface of the base member to clamp the opposite ends of a polishing cloth or pad I2 in fixed position after the same has been placed under said base member I. The upstanding pointed cloth or pad engaging spurs 6 will be adapted to pierce a cloth or pad I2 to provide further means for holding the same in position before the cloth is engaged and locked between the ribs and grooves on the head and base members respectively.

Upwardly extending locking ears I3 and I4 are formed at the opposite rear corners of the base member I and cooperate With and receive the laterally extending threaded locking pins I5 and I6 supported at the rear opposite corners of said member 1 in vertical slots I 1 and I8 formed in said ears I3 and I4, with the threaded outer ends of the locking pins I5 and I 6 supporting wing locking nuts I9 and 20 on their outer ends to clamp against said ears to lock the base and head members in locked and assembled position.

Spaced apertured bearing ears 2| and 22 are formed on the central upper surface of said head member 'I and cooperate with the apertured ear 23 disposed therebetween and formed 3 on the lower end of the internally threaded handle supporting socket 24, into which the handle 25 is removably supported. A pivot pin 26 extends through the apertured ears 2l, 22 and 23 to provide for the pivoting of the handle 25.

The head member 1 is of a thicker construction than the base member l to provide a Weight for holding the polishing cloth or pad I2 in iirm contact with the 'floor while operating the floor polisher.

From the foregoing description, it will be apparent that there has been devised and provided a highly efficient form of floor polisher, which will be relatively inexpensive to manufacture and produce.

While the preferred embodiment of the instarrt invention has been illustrated and ,described, fit will be understood that it is not intended to limit the scope of the invention thereto, as many minor changes in detail of construction may be nesorted to :without departure 'from .the .spirit :of the invention.

Having thus described lour invention vvvhat We claim as .new and desire to secure by Letters Patent of the United yStates is:

A floor polisher comprising a nat rectangular base member, opstanding aperltured -ears formed 4adiacer-rt the opposing Ifront corners thereof, upstanding retaining members having a notch formed therein disposed adjacent the rear corners of the base member, -a :dat head -member superimposed on said vbase member and having longitudinal side edges, lateral A-pins carried by the opposing longitudinal side edges vof the yhead member adjacent the iront thereof, said pins being journaled in said ears for pivotally supportingthe head member on the base, a second pair of lateral pins carried by the head member and engageable in the notched retaining members, means for locking said second pair of pins therein, a handle pivotally supported on the top member, means for detachably securing the ends of a polishing pad between the base and head member after the padis y'disposed over the bottom surface o'f the base member, said securing means including grooves on said base member and raised ribs on said head member engageable in said .grooves and piercing members on said base. JULIUS C. ENGBERT. FRANCIS A. ENGBERT.

REFERENCES CITED The following references are of record in the file of this patent:

UNHED .STATES PATENTS Number Name Date 468,447 BuchW-alter Feb. 9, "-1-892 '839,006 'Larson Dec. 1-8, 1966 1,526,161 Lyon Feb. 10, 1925 1,576,173 Braun et al. Mar. 19, 1926 1,632,481 Judge June 14, 1927 2,127,886 Plon Aug. 23, 1938 2,205,535 Muckenhirn June 25, 1940 VFOREIGN PATENTS Number Country 'Date 21,014 Switzerland Feb. 16, 1901 45,755 Switzerland Dec. 1-2, 190B 

